first pass at dockerfile support

plugins/git/commands

@@ -1,19 +1,30 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+source "$(dirname $0)/../common/functions"
 
-git_archive_all() {
-  APP=$1; REV=$2
+git_build_app_repo() {
+  verify_app_name "$1"
+  APP="$1"; REV="$2"
+
+  # clean up after ourselves
   TMP_WORK_DIR=$(mktemp -d)
+  trap 'rm -rf "$TMP_WORK_DIR" > /dev/null' RETURN
+
+  # git clone
   chmod 755 $TMP_WORK_DIR
   unset GIT_DIR GIT_WORK_TREE
   pushd $TMP_WORK_DIR > /dev/null
-  git clone -q $DOKKU_ROOT/$APP $TMP_WORK_DIR &> /dev/null
+  git clone -q "$DOKKU_ROOT/$APP" "$TMP_WORK_DIR" &> /dev/null
   git config advice.detachedHead false
-  git checkout $REV &> /dev/null
+  git checkout "$REV" &> /dev/null
   git submodule update --init --recursive &> /dev/null
   find -name .git -prune -exec rm -rf {} \; > /dev/null
-  tar c .
-  rm -rf $TMP_WORK_DIR > /dev/null
+
+  if [[ -f Dockerfile ]] && [[ "$([[ -f .env ]] && grep -q BUILDPACK_URL .env; echo $?)" != "0" ]] && [[ ! -f ".buildpacks" ]]; then
+    dokku receive "$APP" "dockerfile" "$TMP_WORK_DIR" | sed -u "s/^/"$'\e[1G'"/"
+  else
+    dokku receive "$APP" "buildstep" "$TMP_WORK_DIR" | sed -u "s/^/"$'\e[1G'"/"
+  fi
 }
 
 case "$1" in
@@ -25,7 +36,8 @@ case "$1" in
       # Only run this script for the master branch. You can remove this
       # if block if you wish to run it for others as well.
       if [[ $refname = "refs/heads/master" ]] ; then
-        dokku git-build $APP $newrev
+        # broken out into pluginhook so we might support other methods to receive an app
+        pluginhook receive-app $APP $newrev
       else
         echo $'\e[1G\e[K'"-----> WARNING: deploy did not complete, you must push to master."
         echo $'\e[1G\e[K'"-----> for example, try 'git push <dokku> ${refname/refs\/heads\/}:master'"
@@ -56,7 +68,7 @@ case "$1" in
     else
       REF=$(< "$DOKKU_ROOT/$APP/refs/heads/master")
     fi
-    git_archive_all $APP $REF | dokku receive $APP | sed -u "s/^/"$'\e[1G'"/"
+    git_build_app_repo $APP $REF
     ;;
 
   git-*)